While you wait for answers, we may have found some information which could help you.
Success
Message
were do I get a diagram and information on airpressureswitch 105he?
no hot water and pressure valve is on red and water is leakiing outside?
charging system up?
what does F14 mean and F5?
pressure switch?
no domestic hot water?
Fan light flashing?
max of 50 degrees hot water?
burner going of after 2 or 3 minutes and on?
water sensor?
gas neoon flashing?
water goes cold during shower?